1959 Imperial Two-door Wagon

I finally found the Swedish "Wheels" magazine (Feb. 1994) where was an small
article about the '59 Imperial Wagon. There was one small photo
and text about as follows: "Officially there was no Imperial Wagon from the
factory but it is rumored that they made a couple of prototypes of them.
This car seems to be manufactured professionally and very long time ago, so
could have been originally a wagon."

There wasn't any mention where this
car has been found, but it is located in Sweden.

Photo from February 1994

Does anybody know which Special Interest Auto issue had that wagon
article?